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Anybody know what this may be? Soft black spot on inside wall of tomato. It's not BER because it isn't firm. It looks like it entered the fruit from the stem, because the rot is contained. It's happened to several varieties and only a few fruit. I believe this is the 4th one. Any insight would be appreciated.

Could be several things from a bruised fruit that rotted in that spot to a worm inside. It could also be from stings from leaf footed bugs or stink bugs or a disease like Gray Mold.
Tomatoes are always looking for someway to go wrong and mess up our happy gardening.